Key points are not available for this paper at this time.
Correction to: European Journal of Clinical Nutrition (2013) 67, S21–S23; doi:10.1038/ejcn.2013.227 Since the publication of this supplement, it has been noticed that the author affiliations were not included in the Summary and Recommendations article. The correct author affiliations are shown above, and the online html and PDF have been amended.
Kuperminc et al. (Sun,) studied this question.